water level controller Applications

Culligan Water installs Greyline SLT32 Level Monitors to control tank levels in their bottling plant in Calgary, Alberta. With non-contacting ultrasonic sensors the SLT32`s control fill and discharge valves in five tanks containing spring water, reverse osmosis water and distilled water.

A Surge Tank is used at the Okatokes Rec Centre Swimming Pool to regulate pool level. By monitoring level in a surge tank the non-contacting Greyline LIT25 Level Indicating Transmitter controls makeup water flow through a solenoid valve.

A distinction is made between low water (LW) and high water (HW) limiters. Whereas LW limiters are in principle required for the safe operation of a plant in accordance with European regulations, HW limitation (overfill protection) is required only in accordance with TRD 604 for 72-hour operation.

Excessive algae growth can throw even the best water treatment processes out of balance. Algae can clog intake screens, fluctuate pH levels, increase chlorine demand, and negatively affect the taste and smell of water.
By blocking sunlight within water treatment tanks, you can stop algae growth, reduce chemical usage, and minimize the formation of disinfectant by-products (DBPs). Temperature is better controlled and maintenance associated with algae cleaning is simplified. The results? Better water treatment and...

Town operators were plagued by high level alarm call outs at two new sewage lift stations. Read how they used Greyline`s hybrid ultrasonic level controllers with dual sensor capability to put an end to level alarms.

An Ontario municipality deploys Portable flowmeters to solve flow rate discrepancies between sewage pump station effluent and lagoon influent flowmeters. Faced with suspension of construction permits due to flow rate uncertainty, the Township of North Glengarry called on Greyline Instruments to help troubleshoot two permanently installed flow meters.

Whether you find yourself in a hotel bath room, cruise ship cabin, hospital, office building, industrial plant, greenhouse, car wash facility or your own hot tub, the combination of certain temperature levels, stagnant water and the presence of biofilm in water systems is a potential recipe for disaster: an outbreak of Legionnaires’ disease. An outbreak of Legionnaires’ disease is often the result of negligence, having legal repercussions for responsible parties. Because of its chemical and biocidal...

Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary.
The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and...

Problem: A significant portion of the operational costs of a conventional municipal wastewater treatment plant employing an aerobic biological treatment unit comes from electricity costs associated with aeration. In many cases, the aeration rates are kept at the maximum level to ensure that the plant’s effluent is in compliance with the regulations. The critical parameter for regulatory purposes and treatment efficiency, BOD, takes 5 days to measure through standard methods providing almost no value to the...

ontext & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. Odors are very distinct air contaminants as they generate nuisances. The factors playing a...

As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor...

Ensuring safe drinking water is a complicated and resource intensive process involving stringent state and federal requirements. Failures in the system are not only costly but can pose serious threats to public health. Pumping tests provide needed data to ensure proper flow and aquifer levels. With DriveConnect technology in place it is possible to significantly minimize expensive lift station drawdown testing.
Drive‑Chat enabled solutions can reduce costs with automated alerts and remote anywhere anytime...

As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor...

GE Analytical Instruments offers several Sievers TOC Analyzer models designed specifically to simplify monitoring of drinking water treatment plants. Always knowing the TOC levels throughout a water treatment plant, and improving TOC reduction, can help a plant not only control DBPs, but also implement efficient and potentially cost saving treatment processes.

As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor...

Water suppliers typically test for radionuclides once or twice a year. Most drinking water supplies are surface water; reservoirs, rivers, treatment plants. Current vulnerability to terrorist attack or industrial accident is a critical public safety consideration. No other vendors have duplicated US Nuclear Corps’ Technical Associates Continuous Real-Time Water Monitoring systems. Globally Technical Associates is the sole source for this level of monitoring for both drinking water and waste water. This...

Introduction
Mercury determination in natural, drinking, and waste waters is one of the most popular analyses used for environment pollution and sanitary control. Background concentrations of mercury in natural water are within several ng/l. Maximum national permissible levels for mercury in water lie in the range of 0.16–6 µg/l. For example, the following limits for mercury in drinking water are set, µg/l: 0.5 – Japan, Russia; 1 – Argentina, Australia, Brazil, China, EC; 2...

Being one of the key necessities of life, water should be submitted to a thorough quality control. Targeted chemical analysis of priority compounds can give an impression of the chemical quality, but may not cover the entire load of pollutants that evoke biological effects. CALUX assays are successfully applied in the identification of water samples that are polluted with biologically active toxicants even at low levels and address the complexity associated with the compound mixtures.

Monitoring multiple sensing points including fill level, pH, conductivity, and flow—often from varied locations in a large water treatment plant—can be a challenge. With four analogue inputs, a single SureCross Node can easily centralize and transmit critical monitoring information from multiple Sensors or controllers. Banner’s unique power management capability enables a single Node equipped with a FlexPower™ optimized QT50U or T30UX ultrasonic analogue sensor (level detection) to operate...

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